Section 5 Day 3

Driver Responsibility: Adverse Conditions

Heavy Smoke, Rain, or Snow, Fog & Strong Wind

Bell Ringer #3

Write a half a page red to red. Save these to be turn in on test day. Worth 10% of your grade.

People listen to music for different reasons and at different times. Why is music important to many people? Use specific reasons and examples to support your choice.

Reminder1.1. Bring paper/pen/pencil and notebookBring paper/pen/pencil and notebook

2.2. Electronics are for instructional use with permission Electronics are for instructional use with permission

3.3. Don’t forget to do daily quizzes on QUIA.COMDon’t forget to do daily quizzes on QUIA.COM

4.4. No Excuses why you don’t take Quizzes 1-6 No Excuses why you don’t take Quizzes 1-6

before test day!! (Quizzes are worth 30% of grade)before test day!! (Quizzes are worth 30% of grade)5.5. Attendance is MANDATORY!! (NO SLEEPING in class)Attendance is MANDATORY!! (NO SLEEPING in class)

6.6. All notes can be found on Harrisonburg’s staff website:All notes can be found on Harrisonburg’s staff website:

http://staff.harrisonburg.k12.va.us/~tbutler/http://staff.harrisonburg.k12.va.us/~tbutler/

7.7. If you are NOT taking notes in class, please be quiet and If you are NOT taking notes in class, please be quiet and ask to use the restroom at the end of class.ask to use the restroom at the end of class.

This is what you are trying to get at the end of class..This is what you are trying to get at the end of class..

Harrisonburg High School

H.C.P.S

36

x

03/06/2012

Your Name Here

“Green Card”

Objectives: (Day 3)

Students will understand visibility limitations isibility limitations in bad weatherin bad weather

Students will understand unusually strong wind conditions

Students will understand low water crossings Students will understand different types of different types of

floodsfloods Students will understand driving in extreme

hot and cold temperatures

Heavy Smoke, Rain, Fog or Snow

In an instant, the following can occur: Smoke is evident ahead. Suddenly

smoke and ashes from a large brush fire cover the road.

It is sprinkling. A few moments later, rain is falling in a solid sheet.

Snow is falling lightly. Two miles down the road, it becomes a whiteout.

DO NOT WRITE THIS SLIDE

Visibility LimitationsVisibility Limitations

Reduce speedReduce speedMake sure your headlights are on low beam (aimed Make sure your headlights are on low beam (aimed at the road surface) to reduce the amount of at the road surface) to reduce the amount of light/glare reflected back at youlight/glare reflected back at youTurn on your windshield wipersTurn on your windshield wipersIf necessary, turn on the defroster or air conditionerIf necessary, turn on the defroster or air conditioner

Driving in Driving in Bad WeatherBad Weather

Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather

Reduce speed, but NEVER stop in a Reduce speed, but NEVER stop in a travel lanetravel lane

Turn on emergency flashersTurn on emergency flashers Look for an exit from the highwayLook for an exit from the highway

Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather

stop beyond end of guard railback up to outboard of the

guard railturn off all lights (WHY??)wait for the bad weather to

pass

If impossible to leave highway:

If your stopping distance is longer

than your sight distance, you have

created a high risk situation – slow

down

Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather

Sto

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Dis

tan

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top

pin

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nce

Visibility Visibility RangeRange

Braking distances at 20 mph with conventional tires on different pavement conditionsBraking distances at 20 mph with conventional tires on different pavement conditions

Ice - 150 feet

Packed Snow - 60 feet

Wet - 25 feet

Dry - 20 feet

Unusually Strong Wind Conditions

Strong winds create a problem called buffeting.

Buffeting: To strike against forcefully

This condition can occur on bridges and when being passed by large trucks.

These wind gusts and blasts can cause total loss of vehicle control.

How To Respond to Wind

Reduce speed. Grip the steering wheel firmly to

maintain vehicle control. Leave extra space between your

vehicle and other vehicles. Be prepared to counter steer. Stay off brake

Low Water Crossings

Low Water Crossings

Nearly 50% of flash flood Nearly 50% of flash flood fatalities are vehicle relatedfatalities are vehicle related

Search for flood prone Search for flood prone areas: areas:

- highway dips- highway dips

- bridges- bridges

- low areas- low areas

Most vehicles will float Most vehicles will float

Very little water on the Very little water on the road surface can cause loss road surface can cause loss of controlof control

Low Water Crossings

Driving too fast through water will cause the vehicle to hydroplane and lose contact with the road surface.

5 Types of Floods

Coastal Flood

Urban Flood

River Flood

Flash Flood

Ice Jam

River Floods Occur seasonally when heavy

rains fill rivers or Heavy rains from hurricanes or

tropical systems

Coastal Floods

Winds generated from tropical storms and hurricanes can drive ocean water inland.

Earthquakes can also produce waves called tsunamis, sometimes referred to as tidal waves.

Urban Floods

As land is converted from fields or woodlands to roads and parking lots, it loses its ability to absorb rainfall.

Streets can become swift moving rivers.

Flash Flooding An arroyo is a water-carved gully

or normally dry creek bed. Arroyos can fill with fast-moving

water very quickly.

Ice Jams

Floating ice can accumulate at a natural or manmade obstruction and stop the flow of water.

Extreme Temperatures

+32

+120

-40

O

O

O

+32

+120

-40

O

O

O

Hot and Cold Temperatures

Vehicles are designed to operate in a wide range of Vehicles are designed to operate in a wide range of temperatures, from very hot to extremely cold.temperatures, from very hot to extremely cold. However, However, these extreme conditions can cause stress to any vehicle part these extreme conditions can cause stress to any vehicle part that is temperature sensitive.that is temperature sensitive.

• Tires should be balanced, aligned, Tires should be balanced, aligned,

the proper type, and have adequate treadthe proper type, and have adequate tread

- The legal minimum, 2/32 of an inch tread depth,

is inadequate on wet surfaces

• Check tire inflationCheck tire inflation

- Check cold tire pressure regularly

(noted inside driver’s door or in manual)

• Check radiator coolant, hoses, and connectionsCheck radiator coolant, hoses, and connections

Cold Weather PrecautionsCold Weather Precautions

Cold Weather ChecksCold Weather Checks

Check heater, defroster Check heater, defroster

and air conditioner systemand air conditioner system

Winterized windshield wiper fluidWinterized windshield wiper fluid

Check drive belts for tension and wearCheck drive belts for tension and wear

Keep lights and glass areas clear and cleanKeep lights and glass areas clear and clean

Check windshield wiper bladesCheck windshield wiper blades

Tire inflation needs special attentionTire inflation needs special attention

Under inflated tires are subject to

heat and pressure buildup, especially

when driving for extended distances

at higher speeds.

Hot Weather ChecksHot Weather Checks

The air conditioner, radiator coolant hoses, The air conditioner, radiator coolant hoses,

connections, and drive belts need special attention.connections, and drive belts need special attention.

due to the extra load placed on these

cooling systems.

Class Work In your driver’s education book, read

pages 222-224. WRITE the Lesson 3 Review questions

(1+2) on page 224. Save these to be turned in with your

test!

Don’t forget to take Section 5 Day 3 Quiz on Quia.com

Watch 9 minute Video: Driver Education Vol. II “Driving in Bad Weather”

THE END!